hi everyone. I have a 95 5.0 ho and need to know if its a direct replacement for a 86 bronco with a 5.0. What do i need to change?

 

A 95 302 (5.0lt) is essentially the same as the 5.0 in the 86 Bronco, the main difference comes from the 95 being a MAF (Mas Air Flow). So you will need anything related to the MAF to be transferred to the 86 (this might include the ECU, i'm not sure).

 

I heard sumthing about taking off the H.0. intake maniful and replacing it with my bronco intake and rewire the spark plug wires.

 

I think the later years of the 302 (non HO) were actually the same firing order as the 302HO/351W----- Dont quite my exact years but I think from the 60's up to 1994 302s were the same and when ford made the 5.0 HO (mustangs-tbird ect) they used the 351 firing order, and in the last years of the 302 (95-96, except explorers till 98) they were the 351W firing order even if they were not HO. Something like that

 

that 95 5.0 would have a remote mounted tfi module. your 86 has this on the dizzy. for you to use your 86 distributor you will need to get the dizzy cam gear changed from the 95 to the 86. this is because of the roller cam in the 95 motor. I would otherwise keep the 95 motor complete. your 86 harness should connect to everything on that motor. the sensors and such are the same. the injectors are plug in the same order also. just wire the spark plug wires according to the firing order on the intake of the 95.

 

But doesn't the MAF in the 95 engine make a difference?

 

No.. there is nothing in the '95 engine or any other stock engine that makes it a MAF specific motor, it will run on an SD setup just fine as long as the spark plugs are wired for the HO firing order.

Also note that the HO intake puts the EGR and TPS sensors in differernt locations relative to the truck intake, the throttle cable is different, vacuum hose routing and the air intake plumbing is different. And since the '95 HO upper intake is not reversable like the earlier version the air filter will have to be on the passenger side, if an earlier upper was used it could be turned around to face the drivers side and the intake routed to the stock truck location.. though an airbox from a car or an aftermarket source would also be needed. You can avoid all these issues by installing the truck intake but the HO intake is much better suited to the 5.0 and will deliver a broader powerband, so it is worth the trouble IMO.

 

Would I have to change the water pump from my 5.0 to the 5.o ho? I heard it does not align with the v belt.

 

Why run the V belts? you should stay with the serp setup.

 

i would have to change the harness on my broncos alternator. Also so the i think the power steering is different setup.

 

the alt on the 93 is a better safer alt. so i would recommend making that change. look up 3g alt swap. the wiring part if easy. the alt you currently have is prone to catching fire.

the PS pumps are the same for the most part also so no issues there. like i said keep the newer motor complete to simplify your work.

 

Im using my 1986 broncos fi manifull and intake on this 1995 5.o ho. My question is that am i going to have any problems with the ecu?

 

like i have said. keep the 95 5.0 complete. there is no reason to take anything off of it except for the dizzy and swap it over to the 86 model dizzy with the proper cam gear from the 95 motor. also be sure to use the flexplate from your 86 motor.

use your 86 efi harness and computer and just make sure your using the firing order of the newer motor for routing the plugs wires. Do not change the order of the injector harness.

keeping the motor complete will be the easiest. not to mention if the 95 motor is in good shape with no leaks why take everything apart and run the risk of vacum/gasket issues.

 

I dont have the power steering, air conditioner or the alternator. Should I change out the pulleys to v-belt? I have a new timing cover and water pump from the regular 5.0. I think with v-belts i would have to change the water pump and replace the timing cover so the pulleys are alined.